18870894791

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{2326007}}^1$

素因数の和:2326094

約数の個数: 16

約数和(自身を含む): 23073999360

約数和(自身を除く): 4203104569

約数列:

[1, 7, 19, 61, 133, 427, 1159, 8113, 2326007, 16282049, 44194133, 141886427, 309358931, 993204989, 2695842113, 18870894791]

約数ペア:

[(1, 18870894791), (7, 2695842113), (19, 993204989), (61, 309358931), (133, 141886427), (427, 44194133), (1159, 16282049), (8113, 2326007)]